СИСТЕМА ECD, Diagnostic DTC:P0500

DTC Code

DTC Name

P0500

Vehicle Speed Sensor "A"

DESCRIPTION

Vehicles which are equipped with a manual transmission detect the vehicle speed using the speed sensor. The speed sensor transmits a 4-pulse signal for every revolution of the rotor shaft, which is rotated by the transaxle output shaft via the driven gear. The 4-pulse signal is converted into a more precise rectangular waveform by the waveform shaping circuit inside the combination meter assembly. The signal is then transmitted to the ECM. The ECM determines the vehicle speed based on the frequency of the pulse signal.

Table 1.

*a

4-Pulse

*b

from Wheel Speed Sensor

*c

Skid Control ECU (Brake Actuator Assembly)

*d

Combination Meter Assembly

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Memory

P0500

Vehicle Speed Sensor "A"

Either of the following conditions is met (2 trip detection logic):

Conditions (a), (b), (c) and (d) are met for 8 seconds or more:

(a) Engine coolant temperature is higher than 70°C (158°F).

(b) engine speed is 1500 to 4000 rpm

(c) Injection volume is 26 mm3/st or higher.

(d) No speed signal is input to the ECM.

Conditions (a) and (b) are met for 6 seconds or more:

(a) During the fuel cut operation.

(b) No speed signal is input to the ECM.

Open or short in speedometer circuit

Speedometer assembly

ECM

Comes on

DTC stored

Table 2. Related Data List

DTC No.

Data List

P0500

Vehicle Speed

CONFIRMATION DRIVING PATTERN

DTC No.

DTC Detection Drive Pattern

P0500

Drive the vehicle at 10 km/h (6.3 mph) or more

WIRING DIAGRAM

Table 3.

*a

from Skid Control ECU (Brake Actuator Assembly)

*b

Combination Meter Assembly

CAUTION / NOTICE / HINT

Note:

After replacing the ECM, the new ECM needs registration (Click here) and initialization (Click hereНажмите здесь).

Tip:

Read freeze frame data using the GTS. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, and other data from the time the malfunction occurred.

PROCEDURE

CHECK OPERATION OF SPEEDOMETER

Drive the vehicle and check whether the operation of the speedometer in the combination meter assembly is normal.

Tip:

The vehicle speed sensor is operating normally if the speedometer reading is normal.